Prior to Varroa and small hive beetles, that is before 1994 [about] I kept the same mother hive for over 10 years.
For all I know, the original mother hive, born 1962, is still going. I had to get rid of, give away, all of hives to make way for college. Such as life. The comb would need replacement every 5-8 years due to contamination.
Now a days, meet Varroa and small hive beetle. The doomsday immigrants.